Slate-picker



No. 6|7,8l5 Patented Jan. I7. |899.

R. H. ROBERTS. A

suma PICKER.

'(ppumion ma my 2o, 189s.,

(No Modal.)

Anniv n. Ronnnrs, on Bannion, PENNSYLVANIA, "nssieNoR on ONE-HALF TO C. MANVILLE PRATT, OF TOW'ANDA, PENNSYLVANIA.

as me-PICKER.'

,SPECIFICATION forming part of Lettersatent No. 6153815, dated anuary 17, 13.99.

Y Application led May 20, 1898. Serial No. 681,252*- (Novmodel.) l Y To all whom, t Vmay concern.-

Be it known-that I, ADEN II. RoBERTS, a citizen of the United States, residing at Bernice, in the county of Sullivan and State of Pennsylvania, have invented certain new and useful Improvements in-Slate-Pickers'; and l do declare the following to be a full, clear,

and exact description of .the invention, suchV as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in slate-pickers.

lt has for its object to provide means for said corrugations, said chute adapted to receive coal and separate the slate and dirt, therefrom in means for cleaning and pre-'- venting the said disks from clogging, and also in the construction,"combination, and' arrangement of the several parts', as more fully hereinafter described'and claimed. v

My invention is illustratedin th`eaccom= 'panying drawings, in which-l.`-

Figure l is a side view in elevation, partly`A in section; Fig. 2,'a top plan-view; and Figs" 3, a cross-section on linea: zt,- Fig, 2, looking in the direction 'of the arrow. i f

In the drawings, in which likel letters of reference denote like;- parts throughout'jthe several views, A is an inclined chute, having sidesB 'andbottom C, adapted to receive coal as it comes from ascreen located above the. same; D, a suitable frame-on which said chute is supported, and E ashaft mounted' on suitable bearings in the sidesiof the chute, provided on the outside. of the chute with a,

pulley-wheel F, adapted Ato receivepower to transmit motion toxthe'shaft, and o'n the inside between the sides of the chute with a series of rotatable plane vertical' disks G, having their outer peripheries beveled, as at a, said disks so arranged .on shtftrEkas to leave spaces a between the same. s Irl is a plate secured on'the bbttem. of4 the chante just above the disks G, havingobli'que .may be .madejof sheet metal, steel, cast-iron,

u pwardly-extending corrugations. If, .preferably corresponding in number to and in a line with the said disks l l .I is aplate secured to the bottom of the chute below the disks G and having toothed projections K, adapted to bear against'or come into close proximity tothe beveled edges of the disks G forthe purpose of cleaning the same and preventing any coal after -it has passed over the disks G from falling ithrou'gh between the bottom of the chute and the edges of the said disks.

L are a series of fingers mounted o n a bar L', preferably located directly beneath the shaft of the rotatable disks G, which extend up into the spaces a' between `the said disks for the purpose of cleaning and preventing the spaces frombeing clogged-up.

By constructing the ridges of the corrugations of the chute andthe disks so that they will be in alinement-that is, practically making the disks a continuation of the corrugations-and having the disks mounted at the end of saidcorrugations and adapted to ro! tate in the direction taken by the coal as it passes down the chute it will be seen that the slate will be turned up on edge and guided directly into and dropped down through'the spaces between the rotatable disks, while the coal will be carried over the tops of the said disksand pass on down the chute and be deliveredl'intoany desired receptacle.

Theseveral'diderent partsof my invention wood, orfany'other suitable material, as may be desired, and the construction may be varied somewhat'without departing from the spirit of; my invention. Y

Alth'ilgh I have described my invention as adapted to be usedas a slate-picker'and coallcleaner, it could be used in separating ores', Washing coal, dto. `f

" The 'operation is as follows: The chute lis arranged so that the angle or pitch 'ofthe 95 same is such that the force of gravity will impart a rapid motion to the coal, which is ifeceived 'trema suitable screen or chute lof a coal-breaker located above the same, and as the coal travels down-the chute and onto tho obliquely-inclined sides of the corrugations the slate therein will be turned up edgewise l which is dat and... t hin, vcomes to the disks,' Y which are being rotated by the pulley, it will by said .corrugations, and 'when said slate,

fall through the spaces between the same, while the coal, beingin. pieces which are too large 'to pass through the spaces between the disks, will be carried over the disks and passI from being clogged up.

Having thus described my invention, what I claim is l: A slate-picker, comprising a chute having a series'of longitudinal corrugations, and a series of rotatable vertical disks having spaces between them', said disks arranged in aline'ment with the ridges of. said-l tions, substantially as described.

2. A slate-picker, comprising a chute havinga series of longitudinal corrugations, and a series of rotatable vertical disks having spaces between them, said diskslocated at the end of and in alinement with the ridges of said corrugations and forming a continuation thereof, substantially as described.

3. -A slate-picker, comprising al chute having a series of longitudinal corlugations, and a series of rotatable disks havingspacesbetween them, said disks located at the endof said corrugations and having their perimeters in line with and corresponding to the ridges corrugal of said corrugations, substantidly as de scribed( f 1 4. A slate-picker comprising s chute 'haveing a. seriesl of corrugations, a series of rotatable disks having spaces between them, said disks y located at the end of4 and in line with-- the elevated' portions of the corrugations, and a series' of toot'hed'projections located below said disks adapt-ed to bear against or come into close proximity thereto, substantially as described. r

5. A slate-picker comprising 'a chute hav- 'ing a series of crrugations, a series' 'of rotatable disks having spaces between them, said disks locatedat the endfof the corrugations and in alinement with the. ridges thereof, a series of toothed projections located below `and adapted to project between said disks, and a series of fingers located in the spaces between said disks,substantially as described.V 13. A slate-picker,comprising a; chute having a series of corrugations, a series of rotatable disks having spaces between'thern, said disks located at the end of and in alinementA with the'corrugations, and a series of lingers located in the spaces between said disks, substantially as described.

In testimony whereof I aiiix luy-'signature in presence of two witnesses. v

ADEN Il. ROBERTS. Witnesses; 1 t

JAMES GUNNINGHAM, J. II. CRONIN. i 

